DE69013225T2 - Verfahren zur Herstellung von Verbundrohren. - Google Patents

Verfahren zur Herstellung von Verbundrohren.

Info

Publication number
DE69013225T2
DE69013225T2 DE69013225T DE69013225T DE69013225T2 DE 69013225 T2 DE69013225 T2 DE 69013225T2 DE 69013225 T DE69013225 T DE 69013225T DE 69013225 T DE69013225 T DE 69013225T DE 69013225 T2 DE69013225 T2 DE 69013225T2
Authority
DE
Germany
Prior art keywords
production
composite pipes
forms
outer layer
inner layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69013225T
Other languages
German (de)
English (en)
Other versions
DE69013225D1 (de
Inventor
Ragnar Ekbom
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABB Stal AB
Original Assignee
ABB Stal AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ABB Stal AB filed Critical ABB Stal AB
Application granted granted Critical
Publication of DE69013225D1 publication Critical patent/DE69013225D1/de
Publication of DE69013225T2 publication Critical patent/DE69013225T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/20—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by extruding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/02—Compacting only
    • B22F2003/026—Mold wall lubrication or article surface lubrication
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Powder Metallurgy (AREA)
  • Extrusion Of Metal (AREA)
  • Metal Extraction Processes (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Laminated Bodies (AREA)
DE69013225T 1989-06-01 1990-05-25 Verfahren zur Herstellung von Verbundrohren. Expired - Fee Related DE69013225T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8901984A SE501390C2 (sv) 1989-06-01 1989-06-01 Sätt för framställning av ett kompoundrör med ett slitstarkt yttre skikt

Publications (2)

Publication Number Publication Date
DE69013225D1 DE69013225D1 (de) 1994-11-17
DE69013225T2 true DE69013225T2 (de) 1995-02-23

Family

ID=20376146

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69013225T Expired - Fee Related DE69013225T2 (de) 1989-06-01 1990-05-25 Verfahren zur Herstellung von Verbundrohren.

Country Status (6)

Country Link
US (1) US5069866A (sv)
EP (1) EP0401185B1 (sv)
JP (1) JPH03104805A (sv)
AT (1) ATE112704T1 (sv)
DE (1) DE69013225T2 (sv)
SE (1) SE501390C2 (sv)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5223345A (en) * 1989-11-02 1993-06-29 Reifenhauser Gmbh & Co. Maschinenfabrik Extruder housing for a double-worm extruder and method of making same
US5903815A (en) * 1992-02-12 1999-05-11 Icm/Krebsoge Composite powdered metal component
US6454993B1 (en) 2000-01-11 2002-09-24 Delphi Technologies, Inc. Manufacturing technique for multi-layered structure with magnet using an extrusion process
JP3774625B2 (ja) * 2000-10-30 2006-05-17 株式会社日立製作所 焼結部材の鍛造方法
US6623690B1 (en) * 2001-07-19 2003-09-23 Crucible Materials Corporation Clad power metallurgy article and method for producing the same
US6655004B2 (en) 2001-10-03 2003-12-02 Delphi Technologies, Inc. Method of making a powder metal rotor for a surface
US6675460B2 (en) 2001-10-03 2004-01-13 Delphi Technologies, Inc. Method of making a powder metal rotor for a synchronous reluctance machine
US20040166012A1 (en) * 2003-02-21 2004-08-26 Gay David Earl Component having various magnetic characteristics and qualities and method of making
DE102004039356B4 (de) * 2004-08-12 2007-03-08 Schmidt + Clemens Gmbh + Co. Kg Verwendung eines Verbundrohres zum thermischen Spalten von Kohlenwasserstoffen in Anwesenheit von Dampf

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE419298B (sv) * 1971-08-02 1981-07-27 Asea Ab Forfarande vid isostatisk varmpressning av emnen av pulver
US3728111A (en) * 1971-09-21 1973-04-17 Asea Ab Method of manufacturing billets from powder
US3780418A (en) * 1972-10-10 1973-12-25 Aluminum Co Of America Method of fabricating composite multi-metallic billets useful for metal working operations
US4143208A (en) * 1974-04-19 1979-03-06 Granges Nyby Ab Method of producing tubes or the like and capsule for carrying out the method as well as blanks and tubes according to the method
DE2419014C3 (de) * 1974-04-19 1985-08-01 Nyby Bruks AB, Nybybruk Verfahren zum Herstellen von Rohren aus rostfreiem Stahl und Anwendung des Verfahrens auf das Herstellen von Verbundrohren
DE2462747C2 (de) * 1974-04-19 1984-02-23 Nyby Bruk AB, Nybybruk Strangpreßbolzen zur pulvermetallurgischen Herstellung von Rohren aus rostfreieem Stahl
CA1145523A (en) * 1978-09-06 1983-05-03 Peter Nilsson Process for the after-treatment of powder-metallurgically produced extruded tubes
US4373012A (en) * 1978-10-26 1983-02-08 Granges Nyby Ab Casings and pressed parts utilized for the extrusion of articles, particularly pipes, and manufacturing process of such casings and pressed parts
DE2846660C2 (de) * 1978-10-26 1984-03-08 Gränges Nyby AB, Nybybruk Ringkörperförmige Hülle für Strangpreßbolzen zur pulvermetallurgischen Herstellung von Rohren
DE3009916C2 (de) * 1980-03-14 1985-10-10 Nyby Uddeholm AB, Torshälla Strangpreßbolzen für die pulvermetallurgische Herstellung von Rohren sowie Verfahren zu seiner Herstellung
DE3009882C2 (de) * 1980-03-14 1985-10-03 Nyby Uddeholm AB, Torshälla Strangpreßbolzen für die pulvermetallurgische Herstellung von Verbundrohren
SE441337B (sv) * 1981-06-04 1985-09-30 Nyby Uddeholm Ab Kapsel for pressemnen for extrudering av foremal, serskilt ror
US4602952A (en) * 1985-04-23 1986-07-29 Cameron Iron Works, Inc. Process for making a composite powder metallurgical billet
US4640815A (en) * 1985-10-17 1987-02-03 Crucible Materials Corporation Method and assembly for producing extrusion-clad tubular product
US4748059A (en) * 1985-10-17 1988-05-31 Crucible Materials Corporation Assembly for producing extrusion-clad tubular product
SE8603686D0 (sv) * 1986-09-03 1986-09-03 Avesta Nyby Powder Ab Halning

Also Published As

Publication number Publication date
SE8901984L (sv) 1990-12-02
SE501390C2 (sv) 1995-01-30
US5069866A (en) 1991-12-03
SE8901984D0 (sv) 1989-06-01
ATE112704T1 (de) 1994-10-15
JPH03104805A (ja) 1991-05-01
DE69013225D1 (de) 1994-11-17
EP0401185B1 (en) 1994-10-12
EP0401185A1 (en) 1990-12-05

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee